Mathematics
Grade10
Easy

Question

Find the value of f (3) for the function f left parenthesis x right parenthesis equals negative 3 x plus 12

  1. 3
  2. 6
  3. 9
  4. 12

hintHint:

This question is about a function. A function is a relation between two sets such that every element of first set is related to only one element in second set. In this question, we are given the relation between the input and output of the function. We are asked to find the value of function for a specific value.

The correct answer is: 3


    The given function is f(x) = -3x + 12
    We have to find the value of f(3).
    When we substitute the value of x in the function, we get the value of the function for that input.
    Here, we have x = 3.
    We will replace all the x in the above equation by 3. Then, we will solve the equation and get the required value.
    f(x) = -3x + 12
    f(3) = -3(3) + 12
    = -9 + 12
    = 3
    So, for the given function f(3) = 3.

    For such questions, we should know the concept of functions.

    Related Questions to study

    Grade10
    Mathematics

    For the set of ordered pair shown, identify the range. {(-5,0); (-2,4); (-1,-3); (2,4); (4,-1)}

    For the set of ordered pair shown, identify the range. {(-5,0); (-2,4); (-1,-3); (2,4); (4,-1)}

    MathematicsGrade10
    Grade10
    Mathematics

    The __________ of a function is the set of inputs.

    The __________ of a function is the set of inputs.

    MathematicsGrade10
    Grade10
    Mathematics

    If a , b , c are in Arithmetic Sequences then:

    If a , b , c are in Arithmetic Sequences then:

    MathematicsGrade10
    parallel
    Grade10
    Mathematics

    The nth term of an Arithmetic Sequences. 5 , 2 , -1 , -4 , -7 … is

    The nth term of an Arithmetic Sequences. 5 , 2 , -1 , -4 , -7 … is

    MathematicsGrade10
    Grade10
    Mathematics

    If p , q , r and s are in Arithmetic Sequences, then r - q is

    If p , q , r and s are in Arithmetic Sequences, then r - q is

    MathematicsGrade10
    Grade10
    Mathematics

    City tours rents bicycles for $10 an hour with a maximum daily fee of $100. Show the cost for renting bicycle for 1, 3, 11, and 20 hours.

    The cost of renting a bicycle is $ 100 per day. The maximum fair is $ 100 for any number of hours a day. If we have to find a random number of hrs, we can Multiply the number of hrs by the amount of the rent for that particular hour. That gives the total rent for that particular hour.
    Eg: cost of renting bicycle for 1 hour = $10 x 1 = $10

    City tours rents bicycles for $10 an hour with a maximum daily fee of $100. Show the cost for renting bicycle for 1, 3, 11, and 20 hours.

    MathematicsGrade10

    The cost of renting a bicycle is $ 100 per day. The maximum fair is $ 100 for any number of hours a day. If we have to find a random number of hrs, we can Multiply the number of hrs by the amount of the rent for that particular hour. That gives the total rent for that particular hour.
    Eg: cost of renting bicycle for 1 hour = $10 x 1 = $10

    parallel
    Linear-Functions
    10th-Grade-Math---USA

    The positive association among the following is

    The positive association among the following is

    10th-Grade-Math---USALinear-Functions
    Linear-Functions
    10th-Grade-Math---USA

    The arithmetic sequence among the following is

    The arithmetic sequence among the following is

    10th-Grade-Math---USALinear-Functions
    Linear-Functions
    10th-Grade-Math---USA

    If an = an – 1 + 15; a1 = 8, then identify the sequence.

    If an = an – 1 + 15; a1 = 8, then identify the sequence.

    10th-Grade-Math---USALinear-Functions
    parallel
    Linear-Functions
    10th-Grade-Math---USA

    If in arithmetic sequence 4th term is thrice the 2nd term, then the first term is

    If in arithmetic sequence 4th term is thrice the 2nd term, then the first term is

    10th-Grade-Math---USALinear-Functions
    Linear-Functions
    10th-Grade-Math---USA

    Identify recursive formula for arithmetic sequence 2, 6, 10, 14, 18

    Identify recursive formula for arithmetic sequence 2, 6, 10, 14, 18

    10th-Grade-Math---USALinear-Functions
    Linear-Functions
    10th-Grade-Math---USA

    Identify the relation of data from the table.

    x

    3
    6
    8
    12
    15
    y
    40
    36
    31
    27

    24

    Identify the relation of data from the table.

    x

    3
    6
    8
    12
    15
    y
    40
    36
    31
    27

    24

    10th-Grade-Math---USALinear-Functions
    parallel
    Linear-Functions
    10th-Grade-Math---USA

    The range of the function f(x) = 2x – 1 for the domain {-4, -2, 0, 2, 4} is 

    The range of the function f(x) = 2x – 1 for the domain {-4, -2, 0, 2, 4} is 

    10th-Grade-Math---USALinear-Functions
    Linear-Functions
    10th-Grade-Math---USA

    If common difference and first term are same and second term is 4, then the value of common difference is

    If common difference and first term are same and second term is 4, then the value of common difference is

    10th-Grade-Math---USALinear-Functions
    Linear-Functions
    10th-Grade-Math---USA

    The 12th term in sequence -8, -5.5, -3, -0.5, 2.0 …. is

    The 12th term in sequence -8, -5.5, -3, -0.5, 2.0 …. is

    10th-Grade-Math---USALinear-Functions
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.